Base | Representation |
---|---|
bin | 1000001100011… |
… | …00101110111101 |
3 | 11210100001011110 |
4 | 10012030232331 |
5 | 120043441020 |
6 | 10453112233 |
7 | 1463141223 |
oct | 406145675 |
9 | 153301143 |
10 | 68733885 |
11 | 35886870 |
12 | 1b028679 |
13 | 1131744c |
14 | 91b2b13 |
15 | 607a8e0 |
hex | 418cbbd |
68733885 has 32 divisors (see below), whose sum is σ = 121956480. Its totient is φ = 32774400.
The previous prime is 68733853. The next prime is 68733943. The reversal of 68733885 is 58833786.
It is a happy number.
It is not a de Polignac number, because 68733885 - 25 = 68733853 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6651 + ... + 13479.
It is an arithmetic number, because the mean of its divisors is an integer number (3811140).
Almost surely, 268733885 is an apocalyptic number.
It is an amenable number.
68733885 is a deficient number, since it is larger than the sum of its proper divisors (53222595).
68733885 is a wasteful number, since it uses less digits than its factorization.
68733885 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6909.
The product of its digits is 967680, while the sum is 48.
The square root of 68733885 is about 8290.5901478725. The cubic root of 68733885 is about 409.6286246481.
Subtracting from 68733885 its reverse (58833786), we obtain a palindrome (9900099).
The spelling of 68733885 in words is "sixty-eight million, seven hundred thirty-three thousand, eight hundred eighty-five".
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